I wasn't sure what category to put this under. My friend got bit by a tick a couple of months ago. He had no rash or any other symtoms that he can think of, but lately he has had some wrist pain. He will have it in one wrist and then in the other and also some knee pain. Now he is having pain in all these places and muscle pain in his back. He has not had any injury that would have made his joints or muscles sore. I do not know if this has anything to do with it, but he has crohn's disease as well which lower's his immune system. Does anyone know what the problem is?